Our Shop does some clinics also. Since I am the "NEW" Guy at 51 years young, I sometimes teach the Flat tire Clinic. I have a great deal of fun with that. I really think shops need to do more of this. The boss was laughing at me the other day because I was showing someone EXACTLY what I was doing with their bike. "No Trade Secrets with Him!" LOL! Of course I work in a fish bowl of a work area so folks are free to look around.
Chris